Co/Co7Fe3 heterostructures with controllable alloying degree on carbon spheres as bifunctional electrocatalyst for rechargeable zinc-air batteries

International Journal of Minerals Metallurgy and Materials, Journal Year: 2024, Volume and Issue: 32(2), P. 476 - 487

Published: Dec. 26, 2024

Language: Английский

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Constructing Janus Structures and Rich Electron Pool in 2D TMTe Nanostructures To Achieve OER/ORR Electrocatalysts

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Through first-principles structure search calculations, we have identified ten hitherto unknown two-dimensional (2D) Janus-wrinkled TMTe monolayers (TM = Ni, Pd, Pt, Co, Rh, Ir, Fe, Ru, Os, and Hf) by screening 3d, 4d, 5d transition metal atoms. These exhibit high stability metallic conductivity. Among the discovered materials, 2D PdTe (ηOER/ORR 0.46/0.22 V) PtTe 0.46/0.32 can demonstrate superior bifunctional catalytic performance for oxygen evolution reduction reactions (OER/ORR), with lower overpotential than state-of-the-art IrO2 OER Pt (111) ORR, respectively. The TM- Te-sides originating from unique Janus configurations play a crucial role in ORR activities, Furthermore, stacking monolayer structures, eight new (TMTe)2 bilayers conductivity be achieved, which possess an internal layer, forming rich electron pool. This effectively improves adsorption activity on some bilayers, including (PdTe)2, (PtTe)2, (RhTe)2, (IrTe)2, transferring more electrons to adsorbed O2 molecule, leading considerably (ηORR 0.16–0.44 V). Moreover, detailed analyses of mechanisms been conducted. intriguing findings offer insights designing low-cost high-performance electrocatalysts reactions, potential replace related noble catalysts used water splitting, fuel cells, metal-air batteries, etc.

Language: Английский

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Sulfur doping induces internal polarization field in NiFe-LDH for bifunctioanl HER/OER and overall water/simulated seawater splitting

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1002, P. 175323 - 175323

Published: June 24, 2024

Language: Английский

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Triggered synergistic effect of Fe single atoms and tiny Co nanoparticles to enhanced oxygen electrocatalysis bifunctionality for zinc-air batteries

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162281 - 162281

Published: April 1, 2025

Language: Английский

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